#278B4D#278B4D

#278B4D is a mid, vivid green. Relative luminance 0.194; OKLCH L 56.5% C 0.131 H 151.9°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#278B4D
RGB	rgb(39, 139, 77)
HSL	hsl(143, 56%, 35%)
HSV	hsv(143, 72%, 55%)
CMYK	cmyk(71.9%, 0%, 44.6%, 45.5%)
CIE-LAB	lab(51.19, -42.97, 25.10)
CIE-LCH	lch(51.19, 49.76, 149.71°)
OKLab	oklab(56.46% -0.1158 0.0619)
OKLCH	oklch(56.46% 0.131 151.9)
XYZ	xyz(11.4079, 19.4311, 10.1691)
Luminance	0.1943 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278B4D #8B2765

analogous

#338B27 #278B4D #278B7F

triadic

#278B4D #4D278B #8B4D27

tetradic

#278B4D #27338B #8B2765 #8B7F27

square

#278B4D #27338B #8B2765 #8B7F27

split-complementary

#278B4D #7F278B #8B2733

monochromatic

#0C2B18 #1A5B33 #278B4D #34BB67 #5BD188

Accessibility & contrast

On white

4.30

#278B4D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#278B4D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278B4D

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278B4D	#FFFFFF	#000000	##000000
##278B4D	1.00	4.30	4.89	4.89
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B7F48

Deuteranopia (green-blind)

#7F7751

Tritanopia (blue-blind)

#00897C

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #278b4d;
/* rgb */ color: rgb(39, 139, 77);
/* oklch */ color: oklch(56.5% 0.131 151.9);

Tailwind

colors: {
  custom: {
    50: '#6fae7f',
    500: '#278b4d',
    950: '#000000',
  },
}

SCSS

$custom: #278b4d;
$custom-light: #6fae7f;
$custom-dark: #000000;

JSON

{
  "hex": "#278b4d",
  "rgb": {
    "r": 39,
    "g": 139,
    "b": 77
  },
  "hsl": {
    "h": 142.8,
    "s": 56.18,
    "l": 34.902
  },
  "oklch": {
    "l": 0.56461,
    "c": 0.13128,
    "h": 151.9
  },
  "luminance": 0.19432
}

Semantic roles & 50–950 ramp

primary

#278B4D

secondary

#B65892

accent

#48A6DF

background

#F7FAF7

surface

#EDF4EE

border

#C8CEC9

text

#08100A

muted

#7B7F7C

Preview Lab

Preview with #278B4D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →